THE EFFECTS OF TRADE WITH DEVELOPING COUNTRIES ON THE REGIONAL DEMAND FOR SKILL IN THE U.S.: EVIDENCE FROM COUNTY DATA*
利用1980-1990年代美国县级数据，研究发现与发展中国家贸易提高了美国对高技能劳动力的需求和技能溢价，且该效应在技能禀赋高、贸易份额大的行业集中的县更为显著。
ABSTRACT Using county‐level data from the 1980s and 1990s and a county‐level trade measure that incorporates the county's industrial mix and patterns of international trade across industries, I provide new evidence that trade with developing countries raises the demand for skill and the skill premium in the U.S. Consistent with Heckscher–Ohlin, I find that trade driven by differences in factor endowments has an economically significant impact on local labor markets. The evidence suggests that when trade with developing countries rises, counties with higher skill endowment and greater employment in industries with larger trade shares experience greater relative demand for high‐skilled labor.